-14-
PAR
RANGE
DESCRIPTION
OA1
NON;
LGT;
0-1;
2CU;
2EU;
ALO;
ALC
AUX 1 output operation
NON : output disabled (always off).
LGT : output enabled for light control.
0-1 : the relay contacts follow the on/standby state of controller.
2CU : output programmed for the control of an auxiliary compressor.
2EU : output enabled for the control of the electrical defrost of a second evaporator.
ALO : contacts open when an alarm condition occurs.
ALC : contacts make when an alarm condition occurs.
2CD
0...120 sec Auxiliary compressor start delay. If OAx=2CU the auxiliary output is switched on with a delay of
2CD seconds after the main compressor has cut-in. Both compressors are turned off at the same
time.
OS1
-12.5..12.5° Probe T1 offset.
T2
NO/YES
Probe T2 enabling (evaporator).
OS2
-12.5..12.5° Probe T2 offset.
T3
NON;
DSP;
CND;
2EU
Auxiliary probe T3 operation
NON
: probe T3 not fitted.
DSP
: temperature T3 to be displayed.
CND
: condenser temperature measurement.
2EU
: second evaporator temperature measurement.
OS3
-12.5..12.5° Probe 3 offset.
AHM
NON;
ALR;
STP;
Operation in case of high condenser alarm
NON
: high condenser alarm inhibited.
ALR
: in case of alarm, “HC” flashes in the display and the buzzer is switched on.
STP
: in addition to the alarm symbols displayed, the compressor is stopped and defrosts are
suspended.
AHT
-50...110°
Condensation temperature alarm (referred to T3 probe).
TLD
1...30 min
Delay for minimum temperature (TLO) and maximum temperature (THI) logging.
TDS
T1;
1-2;
T3
Selects the temperature probe to be displayed.
T1
: probe T1
1-2
: the AVG-weighted average between T1 and T2
T3
: probe T3
AVG
0...100%
The relative weight of T2 on T1 (if TDS = 1-2)
Example 1: T1 = -5°, T2 = -20°, AVG = 100%. The displayed temperature will be -20° (T1 has no
effect)
Example 2: T1 = -5°, T2 = -20°, AVG = 60%. The displayed temperature will be -14.
SCL
1°C;
2°C;
°F
Readout scale.
1°C
: measuring range -50…110°C (0.1°C resolution within -9.9 ÷ 19.9°C interval, 1°C outside)
2°C
: measuring range -50 … 110°C
°F
: measuring range -55 … 180°F
SIM
0...100
Display slowdown.
ADR
1...255
TRL-002 address for PC communication.
NPR
0…1
Setup programmed.
STT
0…255
Setup traceability.
VI. CONTROL BASICS (continued)
